23452040520 has 96 divisors (see below), whose sum is σ = 76288675320. Its totient is φ = 6248171520.

The previous prime is 23452040503. The next prime is 23452040531. The reversal of 23452040520 is 2504025432.

It is a happy number.

23452040520 is a `hidden beast` number, since 234 + 5 + 2 + 0 + 405 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5066307684 + 18385732836 = 71178^2 + 135594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372960 + ... + 431280.

Almost surely, 2^23452040520 is an apocalyptic number.

23452040520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23452040520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38144337660).

23452040520 is an abundant number, since it is smaller than the sum of its proper divisors (52836634800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23452040520 is a wasteful number, since it uses less digits than its factorization.

23452040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59455 (or 59448 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 23452040520 its reverse (2504025432), we get a palindrome (25956065952).

The spelling of 23452040520 in words is "twenty-three billion, four hundred fifty-two million, forty thousand, five hundred twenty".